ContactPost: Civil Aviation Authority of Viet Nam Telephone: +84 24 38274191 Fax: +84 24 38274194 Email: and@caa.gov.vn Web: http://caa.gov.vn | AIP Supplement for VIET NAM | AIP SUP 31/23 Effective from 07 SEP 2023 to PERM Published on 28 JUL 2023 |
ContactPost: Civil Aviation Authority of Viet Nam Telephone: +84 24 38274191 Fax: +84 24 38274194 Email: and@caa.gov.vn Web: http://caa.gov.vn | AIP Supplement for VIET NAM | AIP SUP 31/23 Effective from 07 SEP 2023 to PERM Published on 28 JUL 2023 |
This section supplements the following portion(s) of the AIP: AD.
This AIP Supplement serves to inform the revision and addition of automatic dependent surveillance - broadcast (ADS-B) within Ho Chi Minh FIR (ENR).
Refer to Section 3.1.3, pages ENR 1.6-8, 9 in the Viet Nam AIP.
Note: The adjusted/added contents are bold.
ADS-B service is provided by Ho Chi Minh ACC for those aircraft equipped with ADS-B transmitters data/message that has been certified as meeting EASA (European Aviation Safety Agency) Acceptable Mean of Compliance to AMC 20-24 (Certification Considerations for the Enhanced ATS in Non-radar areas using ADS-B Surveillance 'ADS-B NRA') or meets equipment configuration standards in Appendix XI of Civil Aviation Order 20.18 of the Civil Aviation Safety Authority of Australia.
Aircraft operator must have the relevant operational approval from the State of Registry.
At and above FL 290 within the oceanic area of the East Sea under the Sectors 4 and 5 include the ATS routes: L625, M771, N892, L642, M765, M768, N500 and L628.
The area is out of coverage of radar.
In case of degradation of surveillance systems at the remaining sectors of Ho Chi Minh ACC.
2 ATS routes L642, M771: Applied radar separation. In case the aircraft that does not comply with the requirements stipulated in items b) and c) above will not be accorded priority and can be assigned appropriate flight level below FL 290 in accordance with the assigned flight level by ACC of the adjacent FIR.
6 ATS routes L625, N892, M765, M768, N500 and L628: Applied radar separation within the areas of radar coverage; ADS-B separation will be applied within the areas out of radar coverage. However, the aircraft operating on these ATS routes without ADS-B operational approval can be assigned appropriate flight level from FL 290 and above subject to operational conditions and traffic management considerations.
Air Traffic Controllers (ATC) at HCM ACC shall apply the procedure specified in this Operational procedure when:
+ Loss of aircraft radar identification within specified airspace.
+ In case of attenuation of the surveillance system in the remaining sectors of the Ho Chi Minh ACC, before implementing the Air Traffic Management Contingency Plan specified in the Viet Nam AIP, ENR 1.8, Section 7.6.2.
+ Number of aircraft operating within assigned responsibility area do not exceed the maximum number (when specified).
+ The technical requirements of the system are ensured at a level that is not lower than the minimum requirements specified in the relevant documents. (Documents and operating license approved by CAAV).
In case there is a firm evidence to believe that the conditions do not meet the requirement to implement this procedure (equipment does not meet the standards specified in the ADS-B Terminal Operations Manual, the operational approved license issued and approved by the CAAV), ATC must stop applying this procedure and switch to an appropriate operational procedure, then immediately report to the watch supervisor and notify the units concerned to enable appropriate actions and re-apply the operational procedure specified in this document. Then, ATC reports the ATS occurrence concerned in accordance with regulations.
Communications are specified in Doc 4444, Chapter 8, Section 8.3.
Operation of ADS-B transmitters are specified in Doc 4444, Chapter 8, Section 8.5.4.
Level information based on the use of pressure altitude information
Level information based on the use of pressure altitude information is specified in Doc 4444, Chapter 8, Section 8.5.5.
Performance checks
Performance checks are specified in Doc 4444, Chapter 8, Section 8.6.1
Identification of aircraft
Identification of aircraft is specified in Doc 4444, Chapter 8, Section 8.6.2.
Transfer of identification is specified in Doc 4444, Chapter 8, Section 8.6.3.
Position information is specified in Doc 4444, Chapter 8, Section 8.6.4.
Vectoring
Vectoring is specified in Doc 4444, Chapter 8, Section 8.6.5.
Navigation assistance
Navigation assistance is specified in Doc 4444, Chapter 8, Section 8.6.6.
Interruption or termination of ATS surveillance service
Interruption or termination of ATS surveillance service is specified in Doc 4444, Chapter 8, Section 8.6.7.
Minimum levels
Minimum levels are specified in Doc 4444, Chapter 8, Section 8.6.8.
Separation application
Refer to Section 3.1.3.2, page ENR 1.6-9 in the Viet Nam AIP.
The separation minimum based on ADS-B coverage area (out of radar coverage) to be applied in Ho Chi Minh FIR is 30 miles (NM).
Note: In case at a flight level where the aircraft do not have ADS-B operational approval or the ADS-B equipped aircraft do not meet requirements mentioned in Section 3.1.3.1 b and c Viet Nam AIP but has been approved to flight at or above FL 290 within ADS-B coverage, the 30 miles (NM) separation application shall be terminated at that flight level and the conventional separation shall be applied.
In the case of attenuation of the surveillance system in the remaining sectors of the Ho Chi Minh ACC: The minimum separation value applicable in the ADS-B coverage area of the Ho Chi Minh FIR is 30 NM.
Transfer of control
Transferring is specified in Doc 4444, Chapter 8, Section 8.7.5.
Speed control
Procedures of speed control instructions are specified in Doc 4444, Chapter 8, Section 8.7.6.
Note: Procedures for speed control intructions are specified in ICAO Doc 4444 PANS-ATM, Chapter 4, Section 4.6.
Emergencies
Emergencies are specified in Doc 4444, Chapter 8 and Chapter 15, Section 8.8.1.
Collision hazard information
Collision hazard information is specified in Doc 4444, Chapter 8, Section 8.8.2.
Aircraft radio transmitters failure
Aircraft radio transmitters failure are specified in Doc 4444, Chapter 8, Section 8.8.3.1.
Complete aircraft communication failure
Complete aircraft communication failure are specified in Doc 4444, Chapter 8, Section 8.8.3.2.
ATS surveillance system failure
ATS surveillance system failure are specified in Doc 4444, Chapter 8, Section 8.8.4.
Degradation of aircraft position source data
The provision of surveillance service shall be limited when the aircraft position data degradation below the specified standard.
In case of degradation of aircraft position source data to minimize the impact effect of the degradation of aircraft position source data, ATC must comply with the contingency procedures regulated by the CAAV for ATC positions and for ATS units. (For example, a Receive Autonomous Integrity Monitoring (RAIM) outage for GNSS).
Ground radio failure
Ground radio failure are specified in Doc 4444, Chapter 8, Section 8.8.6.1.
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|
Circumstances |
Phraseologies |
|---|---|---|
| 1 |
To request the capability of the ADS-B equipment | a) ADVISE ADS-B CAPABILITY;*b) ADS-B TRANSMITTER (data link);*c) ADS-B RECEIVER (data link);*d) NEGATIVE ADS-B* Denotes pilot transmission. |
| 2 | To request reselection of aircraft identification | RE-ENTER ADS-B AIRCRAFT IDENTIFICATION |
| 3 |
To request the operation of the IDENT feature | TRANSMIT ADS-B INDENT |
| 4 | To request termination of ADS-B transmitter operation | STOP ADS-B TRANSMISSION [SQUAWK (code) ONLY] |
| 5 |
To request transmission of pressure-altitude | TRANSMIT ADS-B ALTITUDE |
| 6 | To request termination of pressure-altitude transmission | STOP ADS-B ALTITUDE TRANSMISSION [(WRONG INDICATION, or reason)]. |
| 7 |
Confirmation of ADS-B operation | ADS-B TRANSMISSION NOT RECEIVED, CONFIRM ADS-B OPERATIONAL |
| 8 |
To inform the pilot that its ADS-B transmitter appears to be inoperative or malfunctioning | ADS-B TRANSMITTER APPEARS TO BE INOPERATIVE / MALFUNCTION |
| 9 |
ADS-B ground system out of service | ADS-B OUT OF SERVICE (appropriate information as necessary) |
This AIP Supplement shall become effective from 0000 UTC on 7 SEP 2023.
This AIP Supplement shall remain in force until its information has been incorporated into the Viet Nam AIP.